<template>
  <div class="panel-tab__content">
    <div class="element-property input-property">
      <div class="element-property__label">元素文档：</div>
      <div class="element-property__value">
        <el-input
          type="textarea"
          v-model="documentation"
          size="small"
          resize="vertical"
          :autosize="{ minRows: 2, maxRows: 4 }"
          @input="updateDocumentation"
          @blur="updateDocumentation"
        />
      </div>
    </div>
  </div>
</template>

<script lang="ts" setup>

  defineOptions({ name: 'ElementOtherConfig' })
  const props = defineProps({
    id: String
  })
  const documentation = ref('')
  const bpmnElement = ref()
  const bpmnInstances = () => (window as any).bpmnInstances

  const updateDocumentation = () => {
    ;(bpmnElement.value && bpmnElement.value.id === props.id) ||
      (bpmnElement.value = bpmnInstances().elementRegistry.get(props.id))
    const documentations = bpmnInstances().bpmnFactory.create('bpmn:Documentation', {
      text: documentation.value
    })
    bpmnInstances().modeling.updateProperties(toRaw(bpmnElement.value), {
      documentation: [documentations]
    })
  }
  onBeforeUnmount(() => {
    bpmnElement.value = null
  })

  watch(
    () => props.id,
    (id) => {
      if (id && id.length) {
        nextTick(() => {
          const documentations = bpmnInstances().bpmnElement.businessObject?.documentation
          documentation.value = documentations && documentations.length ? documentations[0].text : ''
        })
      } else {
        documentation.value = ''
      }
    },
    { immediate: true }
  )

</script>
